:root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --dim: #8b949e;
    --accent: #58a6ff;
    --ember: #e07a2c;
    --ember-soft: rgba(224,122,44,.55);
    --ok: #3fb950;
    --line: rgba(139,148,158,.16);
  }
  * { box-sizing: border-box; margin: 0; }
  html, body { height: 100%; }
  body {
    min-height: 100vh;
    background:
      radial-gradient(60vmin 60vmin at 50% 34%, rgba(88,166,255,.13), transparent 70%),
      radial-gradient(34vmin 34vmin at 50% 74%, rgba(224,122,44,.09), transparent 72%),
      var(--bg);
    color: var(--fg);
    font: 300 16px/1.5 ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* feines Raster, zum Rand hin ausgeblendet */
  body::before {
    content: "";
    position: fixed; inset: 0;
    background-image:
      linear-gradient(rgba(139,148,158,.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(139,148,158,.05) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(72vmax 72vmax at 50% 38%, #000 28%, transparent 78%);
    mask-image: radial-gradient(72vmax 72vmax at 50% 38%, #000 28%, transparent 78%);
    pointer-events: none;
  }

  /* ── Bühne: links · Mitte · rechts ─────────────────────────────── */
  .stage {
    position: relative;
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(190px, 260px) minmax(0, 1fr) minmax(190px, 260px);
    gap: clamp(16px, 2.5vw, 44px);
    padding: clamp(18px, 3vh, 36px) clamp(18px, 2.5vw, 44px);
    align-items: stretch;
  }

  /* ── Mitte: Masthead · Hero · Aspekte ──────────────────────────── */
  .core {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 0;
    text-align: center;
  }
  .masthead {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 0;
  }

  .hero {
    flex: 0 0 auto;
    width: min(42vmin, 300px);
    height: min(42vmin, 300px);
    filter: drop-shadow(0 0 34px rgba(88,166,255,.28));
  }

  h1 {
    font-size: clamp(52px, 10vw, 92px);
    font-weight: 200;
    letter-spacing: .34em;
    text-indent: .34em;          /* optische Zentrierung der gesperrten Schrift */
    text-transform: uppercase;
    text-shadow:
      0 0 12px var(--ember-soft),
      0 0 34px rgba(224,122,44,.32),
      0 0 68px rgba(224,122,44,.16);
  }
  h1 b {
    font-weight: 500;
    color: var(--accent);
    text-shadow:
      0 0 10px rgba(88,166,255,.5),
      0 0 28px rgba(88,166,255,.28);
  }

  .rule {
    width: 100%; height: 1px; margin: -12px auto 0px;
    background: linear-gradient(90deg, transparent, var(--ember), transparent);
    box-shadow: 0 0 10px var(--ember-soft), 0 0 22px rgba(224,122,44,.3);
  }

  .sub {
    width: 100%;
    display: flex;
    justify-content: space-between;
    color: var(--dim);
    font-size: clamp(11px, 1.6vw, 13px);
    text-transform: uppercase;
  }

  /* ── Aspekte: KI · Drohnen · SmartHome (bottom-orientiert) ─────── */
  .aspects {
    flex: 0 0 auto;
    align-content: start;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(12px, 2.2vw, 26px);
    width: 100%;
    margin-top: clamp(24px, 5vh, 56px);
  }
  .aspect {
    padding: clamp(16px, 2.4vw, 24px) 12px;
    text-align: center;
  }
  .aspect img {
    display: block;
    width: clamp(78px, 15vw, 132px);
    height: clamp(78px, 15vw, 132px);
    margin: 0 auto clamp(18px, 2.4vw, 26px);
    opacity: .92;
    transition: opacity .45s, transform .45s;
  }
  .aspect:hover img { opacity: 1; transform: scale(1.06); }
  .aspect h2 {
    font-size: clamp(14px, 1.9vw, 19px);
    font-weight: 500;
    letter-spacing: .34em;
    text-indent: .34em;
    text-transform: uppercase;
  }
  /* Drohnen-Kachel: gerenderte Aufnahme statt Glyphe */
  .aspect img.drone-shot {
    width: clamp(162px, 28vw, 240px);
    height: auto;
    opacity: 1;
    filter: drop-shadow(0 0 12px rgba(88,166,255,.24)) drop-shadow(0 0 30px rgba(88,166,255,.12));
  }

  /* ── Info-Cards: Systemübersicht (Platzhalter-Server) ──────────── */
  .panel {
    align-self: center;
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 14px;
    background:
      linear-gradient(180deg, rgba(88,166,255,.05), rgba(13,17,23,0) 60%),
      rgba(13,17,23,.5);
    padding: 15px 15px 13px;
    font-family: ui-monospace, "DejaVu Sans Mono", Menlo, monospace;
    font-size: 11px;
    line-height: 1.5;
    letter-spacing: .05em;
    color: var(--dim);
    text-align: left;
  }
  .panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding-bottom: 9px;
    margin-bottom: 9px;
    border-bottom: 1px solid rgba(139,148,158,.14);
  }
  .panel__title {
    font-size: 9.5px;
    letter-spacing: .26em;
    text-transform: uppercase;
    color: var(--fg);
  }
  .panel__tag {
    font-size: 8.5px;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--ember);
    border: 1px solid rgba(224,122,44,.35);
    border-radius: 999px;
    padding: 1px 7px;
  }
  .panel__status {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 10px;
    font-size: 10px;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--fg);
  }
  .panel__rows { display: block; }
  .panel__row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 3px 0;
  }
  .panel__row dt {
    font-size: 9px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: #67737e;
  }
  .panel__row dd { color: var(--fg); text-align: right; }
  .panel__list { list-style: none; }
  .panel__list li {
    display: grid;
    grid-template-columns: 10px 1fr auto;
    align-items: center;
    gap: 8px;
    padding: 3.5px 0;
  }
  .panel__list .svc { color: var(--fg); }
  .panel__list .port { color: #67737e; }

  .dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    display: inline-block;
    flex: 0 0 auto;
  }
  .dot--ok   { background: var(--ok);    box-shadow: 0 0 8px rgba(63,185,80,.6); }
  .dot--warn { background: var(--ember); box-shadow: 0 0 8px var(--ember-soft); }
  .dot--idle { background: #67737e;      box-shadow: none; }

  /* ── Responsive ────────────────────────────────────────────────── */
  @media (max-width: 900px) {
    .stage {
      grid-template-columns: 1fr;
      gap: clamp(20px, 4vh, 40px);
      padding: clamp(20px, 4vh, 40px) clamp(18px, 5vw, 40px);
    }
    .core { order: 1; }
    .panel { order: 2; align-self: stretch; max-width: 420px; margin: 0 auto; }
    .masthead { flex: 0 0 auto; padding: 8px 0 22px; }
    .aspects { flex: 0 0 auto; align-content: start; padding-top: 26px; }
  }
  @media (max-width: 620px) {
    .aspects { grid-template-columns: 1fr; width: min(88vw, 380px); margin: 0 auto; }
    .aspect img.drone-shot { width: clamp(180px, 54vw, 260px); }
  }